Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit No Inversion *

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1998 Mazda Protege DX 1.5L Excessive Emissions, MIL Lamp onVIN: JM1BC1410WP1170: Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit - No Inversion. This protege came to us failing state emissions with very
high CO. Sitting at idle CO is 9%. Oxygen sensor reads rich
and fuel trims are -25. If we induce a misfire or start the
vehicle in clear flood mode fuel control will be good. When
the vehicle is running...

1998 Mazda Protege DX 1.5L Excessive Emissions, MIL Lamp onVIN: JM1BC1410WP1170: Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit - No Inversion. This protege came to us failing state emissions with very
high CO. Sitting at idle CO is 9%. Oxygen sensor reads rich
and fuel trims are -25. If we induce a misfire or start the
vehicle in clear flood mode fuel control will be good. When
the vehicle is running...